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Solids, Liquids & Gases
Adding or removing heat
Phase Changes
Vocabulary
Random
100
Has a definite volume but not a definate shape
What is a liquid?
100
When a liquid is cooled it becomes what?
What is a solid?
100
Phase change of a solid turning into a liquid
What is melting?
100
Anything that has mass and takes up space
What is matter?
100
The law that states that matter cannot be created or destroyed.
What is the law of conservation of matter?
200
Has a definite shape and volume
What is a solid?
200
When heat is added to a liquid it becomes what?
What is a gas?
200
Phase change of a solid turning into a gas
What is sublimation?
200
A group of atoms held together by chemical bonds
What are molecules?
200
The positive part of an atom.
What is a proton?
300
In what state do molecules move extremely quickly and by bouncing off each other
What is a gas?
300
When a gas is cooled it becomes a what?
What is a liquid?
300
Change from a liquid to a solid
What is freezing?
300
The basic building block of all matter.
What is an element?
300
What are all molecules always in a constant state of?
What is motion?
400
Another name for the states of matter
What are phases of matter?
400
What must happen for matter to change states?
What is it must gain or lose heat energy?
400
Phase change of a gas turning into a liquid
What is condensation?
400
The smallest unit of an element?
What is an atom?
400
The negative part of an atom.
What is an electron?
500
Draw a diagram that shows the particles in a solid.
What is particles are packed tightly together?
500
Draw the particle arrangements for a gas.
What is particles are loose and spread out?
500
When heat is added to a liquid and becomes a gas.
What is evaporation?
500
Two or more elements combine to create this.
What is a compound?
500
Salad is an example of this.
What is a mixture?